| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.46 | 3.53 | -0.07 |
| Feb | 2.82 | 2.88 | -0.06 |
| Mar | 4.29 | 4.39 | -0.10 |
| Apr | 3.73 | 3.69 | 0.04 |
| May | 3.72 | 3.86 | -0.14 |
| Jun | 4.40 | 4.47 | -0.07 |
| Jul | 4.58 | 4.69 | -0.11 |
| Aug | 4.42 | 4.55 | -0.13 |
| Sep | 4.78 | 4.93 | -0.15 |
| Oct | 4.13 | 4.25 | -0.12 |
| Nov | 3.41 | 3.27 | 0.14 |
| Dec | 4.10 | 4.33 | -0.23 |
47.84 | 48.84 | -1.00 |